map, filter & reduce 🙏 Namaste JavaScript Ep. 19 🔥

Map, filter & reduce Array functions are the most popular Higher-Order Functions in JavaScript. This episode covers map(), filter() & reduce() along with 11 detailed code examples from easy to tricky ones(The last example is the Best). You'll also find homework towards the end of this episode. ❤️
The only request is to watch this Episode of Namaste JavaScript with full attention. 🙏
My tech gear I use every day - google.peek.link/2pba
00:00 - Introduction
00:40 - Array.map() function in JavaScript
01:39 - Example 1 - map
03:23 - Example 2 - map
04:01 - Example 3 - map
06:43 - Array.filter() function in JavaScript
07:03 - Example 4 - filter
09:00 - Example 5 - filter
09:26 - Example 6 - filter
11:36 - Array.reduce() function in JavaScript
12:18 - Example 7 - reduce
18:41 - Example 8 - reduce
23:07 - Example 9 - tricky map()
25:40 - Example 10 - tricky reduce()
31:49 - Example 11 - Chaining map, filter & reduce
35:31 - Homework - Challenge
36:30 - Teaser of the Next Video
37:14 - Thank you for watching Namaste JavaScript 🙏
Support this web series, NOT BY MONEY, but by sharing it on social media.
please give a shoutout to Namaste JavaScript and help me reach more people. 🙏
I'll give my best to come up with great content and everything absolutely for free on KZbin. 😊
Cheers,
Akshay Saini
akshaysaini.in
Would love to Stay Connected with you ❤️
LinkedIn - / akshaymarch7
Instagram - / akshaymarch7
Twitter - / akshaymarch7
Facebook - / akshaymarch7
#NamasteJS #AkshaySaini

[@ramdey6155]

Hi Aksahy, I am so grateful to you... You make my javascript concepts so clear that , I got offer from 5 companies and going to join a good company with 110% hike. I really believe your content is worth payable. Thank you so much 🙌🙌🙌🙌 Keep educating and spreading love and knowledge. 🥳🥳🥳

[@akshaymarch7]

Congratulations, Ram 🎉 Wish you a great career ahead! ♥️

[@ramdey6155]

@@akshaymarch7 Thank you souch 😀

[@ParameshChockalingam]

Just so you know, you are like that one friend who teaches entire subject few hours before exam 😎

[@gopathotirajesh6956]

@@akshaymarch7 bro where are you . Please do continue this series. I think there is no one explains the things like you. Please don't stop making videos.

[@Abhishek-do8mp]

@@akshaymarch7 hello akshay, I don't know wether you are active or not but please consider our request and upload few more videos on topics like async await, promises, spread and rest operators I believe only you can cover these topics with greater depth of understanding hopefully you're seeing this comment and wish I'd see your smile in upcoming videos this is 22k already thanks for spreading that amount of knowledge on youtube you're one of the reason I tell my juniors that you can learn anything from yt javascript se pyar to krva diya lekin is pyar ko manjil tk to pahucha do.

[@jagrutsharma9150]

Things learned: 1. map method is used when we want transformation of whole array. 2. filter is used when we want to filter the arrar to obtain required value. 3. reduce is used when we want to reduce the array to single value eg (max, min, avg, sum, difference etc). 4. reduce passes two arguments one function(which includes accumulator and initial value as argument itself) and another initial value of accumulator. 5. Homework: const output = user.reduce(function(acc, curr){ if (curr.age < 30){ acc.push(curr.firstName); } return acc; }, [ ]) console.log(output);

[@lakshyapant5225]

bro agr mai return acc ko if k andrr likh rha hu toh error aa rhi hai so what's the reason behind it....please explain?

[@jagrutsharma9150]

@@lakshyapant5225 Kyuki accumulator(acc) ki pehli condition me hi aapne return kar diya. Vo function se exit ho jaayega, aage ka process ruk gaya pura.

[@neharathour6115]

Amazing

[@ganeshbyale5024]

I tried this homework directly in console but throwing error related to acc.push

[@jagrutsharma9150]

@@ganeshbyale5024 Can you tell the error. Maybe i will be able to help you. Maybe copy paste your code and error

[@mohammadnoushadsiddiqui4786]

I complete the homework const user = [ { firstname: "Mohammad", lastname: "Noushad", age: 22 }, { firstname: "Aniket", lastname: "Bhalla", age: 45 }, { firstname: "Bidhi", lastname: "Chand", age: 21 }, { firstname: "Saif", lastname: "Siddiqi", age: 67 }, ]; const output = user.reduce((acc, current) => { if(current.age < 30){ acc.push(current.firstname); } return acc; }, []); console.log(output);

[@debo01]

const output = user.reduce((acc, curr) => { if(curr.age < 30){ acc.push(curr.firstname); } return acc; }, {} );

[@vinothkumarv9722]

Thanks akshay bro love you...

[@ganeshkg007]

Hi, @@debo01 No, this will not work because you initialized the reduce function with object literals {}. Since we are pushing (.push) the results we should use an array for initialization, just like @Mohammad Noushad Siddiqui did. Thanks.

[@iftekhar_ansari]

@@debo01 no its wrong..you can't use push method to insert a data in object ,push is array 's method

[@lingangoudad8552]

How to put these first names into an object?

[@ebukaavatar3007]

I'm a Nigerian who has been struggling to understand these concepts with some of my friends. I love how you add jokes and giffs while teaching. You just earned 12 subscribers(I and my 11 friends)

[@prikshit8]

That’s 12 my friend 😂

[@prikshit8]

@@hailea726 😂😂

[@stephen2824]

@@hailea726 and you will all be forever in a friendship closure :)

[@prathameshyerva7476]

Another 11 subscribers brother ( I and my 12 friends)

[@sohamderoy2505]

Solution of the homework: const output = users.reduce((prevVal, currVal) => { if (currVal.age < 30) { prevVal.push(currVal.firstName); } return prevVal; }, []);

[@abhisekgupta4678]

the thing is the output is not an array it doesn't have []

[@shrimalishrimali7170]

Exactly, that's the same thing i thought

[@mohitbansal321]

@@abhisekgupta4678 you need only name so it make output in the form of array

[@apamibrahim1736]

​@@mohitbansal321yh😊

[@mayurtanna3692]

const max30 = people.reduce((acc, curr) => { if (curr.age > 30) { // acc = curr.firstName; acc = curr.firstName + " " + curr.lastName } return acc; }, {}); console.log(max30)

[@rahulprajapati8052]

Today I learnt 4 things from this video 1. Map function 2. Filter function 3. Reduce function 4. Deepika Padukon is still 26 Awesome video Akshay 👌👌👌

[@akshaymarch7]

Hahaha 🤣

[@dipenchavda6988]

No she is not 26

[@KPoireiNgambaSingha]

i guess her age got "mapped" or "reduced" to 26. pun intended 😆😋

[@AchayanIn]

@@KPoireiNgambaSingha but you 'filtered' some years after 26 😂😂

[@abacas2175]

kudos to Deepika😂😂

[@pranavkuchimanchi3192]

// Code for the challenge given at 36:05 const outputlist = users.reduce((names, user) => { if(user.age < 30){ names.push(user.firstname); //can also use names.unlist(user.firstname); } return names; }, []);

[@vidushikagupta2900]

can you please explain why you use [] instead of empty object {}

[@vidushikagupta2900]

@@ShrikantKunte Thanks

[@SonuKumar-yu6yh]

because in the final output we need an array of first names of users whose age is less than 30 @@vidushikagupta2900

[@GobindaDas-yt]

I also did the same broh

[@ayushjain8156]

Please cover the following topics: 1. async/await 2. Observables 3. Promise

[@known878]

Done in season 2

[@georgetsintsadze8981]

Man your tutorials are so addictive, I don't want to study from other resources. You're like a good music band and we are fans that are waiting for new "songs". Please continue this awesome series 🙏🙏🙏

[@g_pazzini]

same here

[@atharvagarwal2067]

Please continue this series sir ,as we want to learn more about things like promises , async-await , fetch api , OOPS in javascript and more on functional programming.

[@akshaykrishna7292]

Brother - you are so natural in explaining these concepts! Big thanks 🙏 let belowFortyReduce = users.reduce((res, user) => { if (user.age

[@amodpatwa1822]

Hi Akshay, I just finished your "Namaste JavaScript - series 1" course. I can't say how much confident I am in JavaScript now just because of you. Thank you so much for making this amazing video series on JavaScript. Homework solution: const users = [ { firstName: "Akshay", lastName: "Saini", age: 26 }, { firstName: "Donald", lastName: "Trump", age: 75}, { firstName: "Elon", lastName: "Must", age: 50}, { firstName: "Deepika", lastName: "Padukone", age: 28} ]; const output = users.reduce(function(acc, curr) { if (curr.age < 30) { acc.push(curr.firstName); } return acc; } , [ ] ); console.log(output); P.S - from today onwards, I am naming you "The Amazing - Akshay Saini" Regards, Your Well-wisher and a learner

[@mohitkushwaha8156]

You are a true godsend! You’ve got all of the best qualities of a good teacher. Without you, I wouldn’t have made it through.

[@barrosofilho42]

Esses indianos sabem demais. Tu é doido! Salvando sempre. Namastê 🙏

[@victortarroni]

No words can express, how grateful I am for your explanation. you killed it! THANK YOU!

[@lopamudrasahoo8663]

Thank you for making me fall in love with Javascript again. Revisiting is always hard but with your videos, I am getting some new out from the same concepts.

[@gratusrichard1644]

dude, you are a legend. I never saw anyone who explain a program the way you do. not just telling if you do this, this will happen, instead showing how it is happening. If you could upload the same way of teaching for other programs as well, it would be really amazing. I wouldn't mind to pay for such an golden content. also your smile really makes this course very enjoyable to watch. thankyou again

[@brijesh220186]

Loved this JS series... The way you cover each topic is awesome... Easy to understand and remain forever. Thank you ❤️

[@vijaypanchal7344]

Striving for a comprehensive understanding of all concepts is commendable.

[@raimundoladrondeguevara8597]

Hey man, thanks A LOT for your tutorials! They are the most comprehensive I've found on KZbin for JS. Keep it up!

[@jagannathpanigrahy7524]

Sir, Please complete Namaste Javascript series. This is a request on behalf of all javascript developers..

[@akshaymarch7]

All Episodes of Namaste JavaScript Web Series: kzbin.info/aero/PLlasXeu85E9cQ32gLCvAvr9vNaUccPVNP ✅After watching this video, do let me know in the comment, How was the video? I read all the comments, would love your feedback! ❤️

[@SatyendraSingh-mu2ux]

Okay but your videos always awesome thnx

[@sohillalakiya9254]

Please suggest me js book which helps me to learn js from beginner to pro and thanks for this beautiful video❤️

[@sadavhusain2126]

Video was amazing Thanks bro Please make video on arrow function and regular function

[@yashpatel3114]

@Akshay Saini Sir, Can you please make a video on a small project using all these concepts, with HTML CSS JavaScript, for beginners? So that we know where and how these concepts of your previous videos are used. I know that we can google the project, but your explanation is the best and we can understand all the concepts clearly. Only if it is possible and if it doesn't bother you to show a small project. Thankyou Sir. Please consider😊

[@deepakkelath4772]

Super simple explanation

[@Anna-dd4wy]

I am a beginner and always get confused and overwhelmed by these topics. After watching a bunch of videos, this is the only video that gave a beautiful insight about the concept and its functionality in real world problems. Appreciate the efforts you take in making such videos. Cheers!!!

[@katedelsignor6670]

I have been going crazy trying to figure out these concepts. Thank you for making them so clear!!!!! Subbed.

[@mayankkumar6091]

I am in more love with Javascript after watching "Namaste Javascript". I have shared it with all of friends and colleagues to strengthen their knowledge about JS. Words are not enough to explain the value of this series. Thanks for making this series for everyone with pure love and dedication ❤

[@user-uv5py8zi1w]

You're such an excellent teacher. PLEASE DON'T STOP

[@sameersahu4569]

After completing this series i can surely say that i have started to understand the JS concepts better...also the internal working thing was just top notch explanation...... The biggest takeaway from you that you always put on a smile on your face...and when you can teach us with enthusiasm...i can also learn smiling.... Thank you for this amazing series... Waiting for Season 2

[@Pankaj-ul4yo]

The way you explain the concepts, engage people and have fun while learning, you're simply amazing Akshay

[@piyushchandrachandra]

You made this sooo simple to understand!! The reason why this playlist is soooooooo popular! Keep posting great contents.

[@akshayasalaskar9102]

Watching you explain JavaScript is like a treat to the brain. Kudos to this guy❤❤❤

[@TinyMaths]

Thanks; one hour ago I only knew about filter() because I saw it on the FreeCodeCamp but hadn't gotten to the lesson yet. Now I have a good basic understanding and am going to use it to reformat previous projects.

[@KishanKumar-gr1wo]

11:49 Found the answer for why reduce is named so. According to an article on digital ocean - "A reducer will only return one value and one value only hence the name reduce." In simple terms, it reduces the array to a single value.

[@AakashGoplani]

11:50 - Name reduce was assigned with a purpose to maintain similarity between languages. We have similar reduce (and map, filter as well) in other languages also - Java, Python, Scala, Ruby etc. So having a consistent naming convention will be very easy for developers to get up and running when they switch from one language to another!

[@asadrahman6123]

also it reducing from multiple value(array) to single value

[@tonikroos6895]

how much keen you are to teach us in depth..., hats-off

[@TW-uk1xi]

After you've cleared all my basics, now I feel like JavaScript is like water and it's really exciting.

[@athilnath]

I was learning reduce from the video by coding myself and when I tried without assigning an initial value to the acc argument, the first element in the array was assigned to it automatically and the second element was assigned to the curr argument, just sharing an interesting fact, you are a great teacher ❤️❤️

[@klutzy_]

I've watched many tutorials on this topic, but this one is truly the best!

[@harshitakohli9308]

Here is my solution: const output = users.reduce(function(acc, curr){ if(curr.age < 30){ acc.push(curr.firstName); //if age of current user is < 30, push there firstName into the acc array } return acc; }, [ ]); //initially, the acc will be an empty array console.log(output); Thanks Akshay for such a crystal clear explanation!!

[@purvijha4289]

Can we please get a graphql and react series with this much depth your quality of course is far far good than those paid courses

[@kartikgupta3234]

The following snippet will do the work : users.reduce((acc, curr) => { if(curr.age < 30) acc.push(curr.firstName); return acc; }, []); Thank You so much, Akshay for such great content !!

[@joeljacob4685]

Thank you so much for the wonderful series !! I think i am finally beginning to understand the beauty of JavaScript🤩😍

[@vishwavignesh586]

Thank you so much Akshay, I was able to crack an interview because of this namaste javascript series. This series has literally changed my life! Keep up the amazing work 🔥

[@yogeshsharma5168]

I'm so happy that I started this series.. I feel so confident now Thank you aksay❤️💯🙌

[@aadriovijay7244]

Hi akshay. Today I have completed this season second time. I feel very confident in js fundamentals. while watching first time i cannot able to solve some the problem. Now I can able to solve. Thank you so much Akshay!! by using reduce const output = users.reduce(function(acc, curr){ if(curr.age

[@eshagoyal6114]

Thank you so much @Akshay Saini for this series. It made me understand all the basics of JavaScript that I need to know. It was so good, from your explanation to the music in the end of every video.

[@shalinikarkera2387]

I regret for not finding your channel earlier :( still neva too late :) . So much clarity and that eager to make viewers understand the topic. Hats off. Thanks a lot.

[@omkart2854]

Best explanation for all this important array methods!! Reduce example- Const output=users.reduce((acc,curr) =>{ If(curr.age

[@pankarton5950]

Why not acc.push(curr.firstName)? XD

[@jahangagan5396]

const output = users.reduce((acc, cur) => { if (cur.age < 30) acc.push(cur.firstName) return acc }, [])

[@giannizamora7247]

@@jahangagan5396 I like your answer jahan that is what I came up with. I don't really understand Omkar answer of acc = [...acc, curr.firstName]; why are we using spread syntax here

[@jahangagan5396]

@@giannizamora7247 It is the another method of pushing elements into the array nothing else.

[@faizanabbas839]

@jahan gagan Write a PURE function using map,filter and reduce methods to calculate the income tax given an amount. 0 upto 2.5L, 5% for 2.5L-5L, 20% for 5L-10L, 30% for more than 10L. Can you help me with this please

[@vaishaliajmera2197]

Hi Akshay Sir, I have seen so many videos of array map, reduce but never understand it fully. But today, I am able to get deep down knowledge and power of these functions. Thank you so much sir, for making this video. Please make video on React JavaScript. It will help us a lot.

[@KiranKumar-hz8ur]

It's the best series to learn js I have ever seen 🤩 Please upload atleast one video per week in this series 🤝 It will be very helpful 🙏

[@nitingupta1650]

I believe in Namaste Javascript supremacy! Akshay Saini for the president xD

[@akshaymarch7]

🤐

[@meghnakhound8042]

reduce never felt so easy. Thank you!

[@Kelz_369]

Another awesome video! I'm binging this whole series. Thank you so much for your hard work and efforts on putting this content together.

[@siddharthabose9957]

const output2=users.reduce(function(acc,curr){ if(curr.age

[@sujendragharat9645]

Hats off to you Akshay for the Content. const output = users.reduce((acc, curr) => { if (curr.age < 30) { acc.push(curr.firstName) } return acc }, []);

[@hmnaqash7297]

Thank you Akshay for creating the amazing advance JavaScript content. I would like to highlight that your content is highly comprehensive and in-depth, making it necessary for beginners to dedicate around 4 to 5 months to fully grasp these advanced topics. In my opinion, it would be beneficial if you clearly emphasize that individuals who are interested in progressing and finding job opportunities should consider learning React. React provides a more accessible understanding of topics like arrow functions, conditional rendering, and higher-order components. By shifting their focus to React, beginners can avoid getting stuck in JavaScript alone and increase their chances of securing employment.

[@avdhootjadhav6705]

If someone wants to learn these methods, I would definitely refer this one video. Great video 👍

[@nagsai7401]

I don't know but, after seeing notification from namaste javascript I got goosebumps 🔥 🔥, is that the same with everyone !

[@Fatima-ie5kj]

@@roshnis8552 yup

[@vinothkumarv9722]

Exactlly bro ------------------- he is auper man :)

[@cornensue]

Yes yes yes....

[@tauseefanwardo]

Yes bro and you should have that goosebumps.

[@venkyakshaya]

Hey Akshay 😍 I landed a fully front end position at Adobe. You are a gem Your tutorials were like a one place stop. I didn’t refer to any other documentation or tutorial. Made my life easy. Thank you so much ❤️❤️ This community is awesome because of people like you 🔥

[@Abhishek_Poddar]

first of all a very congratulations Akshaya ma'am , it will be a very kind of you if you may tell from where did u referred rest of the topics of this series , from where Akshay saini sir left this series ????

[@venkyakshaya]

@@Abhishek_Poddar Could you tell me what you mean by rest of the topics? Interviews mostly cover the fundamentals. There were no targetted question based on syntax so in my view I think if you complete this playlist you can answer most interview questions on JS.

[@Samps_shadowlogykhot]

Loved the content, definitely watching the advanced stuff next, keep up the good work

[@ratanhegde9258]

Was fun to watch the series. Learnt a lot. Thank you ❤️

[@sumeetyeola4576]

Liked before watching whole video coz I know it's going to be great. Was waiting for your new video, welcome back ♥️

[@ayoobsaad]

let arr = [{fname: "first",age: 15}, {fname: "second",age:31}]; let output = arr.reduce((acc,curr)=>{ if(curr.age > 30){ acc.push(curr.fname) } return acc },[]); console.log(output);

[@vinothkumarv9722]

Hi Akshay after submitted my answered then i am coming to others how they are answered

[@vidushikagupta2900]

Hi Akshay Sir Thank you for sharing your knowledge I was so confused about the concepts and pull my hairs like how the things done but with your way of teaching and your support make me fall in love with the javascript and now I understand the concepts way better than before . Thank you Thank you Thank you Thank you Thank you Thank you a big Thank you for sharing your knowledge with us.

[@varathannk264]

After watch this video I got better understanding in map,filter,reduce Thank you so much

[@bedprakashkushwaha8047]

ultimate no one can do better than this.

[@RyleeSmyth]

I know I'm already late for this but I have finally completed this JS tutorial today. It's just amazing and I don't have any words to describe and YES along with falling in love with JS, I fell in love with Akshay too 😊

[@rajurathod-rg6pv]

same😇🤩☺

[@devmittal3095]

Hi Akshay, really loved the whole Namaste Javascript Playlist, got to learn some really amazing stuff from you. Here is the code of the last question using reduce: const output = users.reduce(function (acc, curr) { if (curr.age < 30) acc.push(curr.firstName); return acc; }, []);

[@ediagbonyaaiyudubie1097]

all your videos are eye opening for me. i have learnt a lot. god bless you. you are my mentor.

[@rohitkumarkhatri2203]

Amazing work! Watched the full playlist in a single session... It was more interesting than Squid Game...

[@yashsinghania1567]

Akshay Bhaiya , Please start a small course or a bootcamp for JS from basic concepts to advanced , this content is gold , we need more of your explanation in various concepts and functional concepts. #JSbyAkshaySaini

[@saicharan4081]

This is the first video i have seen in your channels. I just printed this topics in my mind . Thank you boss .

[@smileysmiley7689]

Hi Akshay, As you asked about writing a program using reduce, Here it is :- const output = users.reduce(function (acc, curr){ if (curr.age < 30){ acc.push(curr.firstName); } return acc; }, []) console.log(output);

[@hamzaakbar5321]

@Akshay Saini sir assignment done const output = user.reduce((acc, curr) => { if(curr.age < 30) { acc.push(curr.name); } return acc; }, []); console.log(output)

[@mohit96nain]

Nice 💯. Also you can use spread operator instead of push 😊

[@puneetbajaj9927]

@@omkaranku1981 you can try acc=[...acc,curr.name] . Spread arr elements first and then the next argument should be the element you want to add.

[@avadhoot05]

@@mohit96nain but spread operator will create a deep copy everytime so its better to use .push()

[@akhilsingh52as]

@@omkaranku1981 const output = users.reduce((acc, user) => { if (user.age < 30) return [...acc, user.firstName]; }, []);

[@sanchitjaiswal666]

I would love to see object oriented classes in JavaScript and es6 modules as well

[@AnkitaSharma-wi3jb]

I second that, waiting for the same.

[@Muwahid999]

Thank you sir for awesome explanation (watched videos of other popular web dev channels but none of them have explaned in such beautiful way)

[@info-prog]

I'm too late may be to say this, but i can affirm : it's the best course about explaining map, thank you so much Saini.

[@nitingupta1650]

We can do something like this to get the desired output! const filterByAge = users.reduce((acc,item)=>{ if(item.age>30){ acc.push(item.firstName); } return acc },[])

[@pranavparashar7137]

but it would be good to use filter here

[@nitingupta1650]

@@pranavparashar7137 surely, but that's not the point. The point is whether or not can we achieve the same functionality with reduce.

[@vishnuvnair756]

@@vinothkumarv9722 I love how you are trying to say you like Akshay more even when Deepika is having a crush on you✌

[@divyansh50]

bro you can replace the if statement with this- item.age>30 ? acc.push(item.firstName) : " "; return acc ONE LINE OF CODE RIGHT !!!

[@vinothkumarv9722]

@@divyansh50 sure we. Can do lie this condition rendering as well 😍

[@sourav_96]

Din ki suruat js ke sath 🔥

[@dualwan]

Akshay Saini = Javascript Guru. Please continue teaching us.

[@namratasanger5921]

Akshay Sir, it's commendable that you are sharing the knowledge with everyone. You are an inspiration for all of us. Btw I did the homework. let data = users.reduce((acc,personDetails)=>{ if(personDetails.age < 30) acc.push(personDetails.name); return acc; },[]);

[@softmerit25]

Hey Man. You are so good. ❤ I love the way you pass detail explanations on your tutorials. Great job. Bless you

[@FrontendFLow811]

Hum first hum first 😂 Namaste JS is finally here 🔥🔥🔥

[@AmitKumar-zy1uc]

const users = [ {firstName: 'akshay', lastName: 'saini', age: 26}, {firstName: 'donald', lastName: 'trump', age: 75}, {firstName: 'elon', lastName: 'musk', age: 50}, {firstName: 'deepika', lastName: 'padukone', age: 26} ] const ans = users.reduce((acc, curr)=>{ if(curr.age < 30) acc.push(curr.firstName) return acc }, []) console.log(ans) // I like the way you simplify the topics and present them with // the most beautiful explanation, THANKS BRO....

[@atharvathombre7438]

Homework : const output = users.reduce((acc, curr) => { if(curr.age < 30){ acc.push(curr.firstName); } return acc; }, []);

[@zahidkhan-hb1ud]

Your way of teaching is so simple and catchy..

[@abuhanifashowrov9425]

Thank you brother for this detailed lesson ... You are just amazing!

[@akshaybhinge8780]

Akshay, are you kidding me already crossed 100k. Congrats 👏. You are passionate teacher. ❤

[@akshaymarch7]

Thank you so much brother, it was not possible without your love and support! ❤️

[@akshaybhinge8780]

@@akshaymarch7 Home work const users = [ { firstName:"akshay", lastName:"bhinge", age:26 }, { firstName:"donald", lastName:"trump", age:75 }, { firstName:"elon", lastName:"musk", age:50 }, { firstName:"deeika", lastName:"padukone", age:29 }, ]; const output = users.reduce(function (acc, curr){ if(curr.age < 30){ acc.push(curr.firstName); } return acc; }, [ ] ); console.log(output);

[@husler7424]

Request: Next videos on JAVASCRIPT OOPS concepts please 🙏

[@dewanshpal7840]

Thanks for explaining the javascript in so detail H.W const output = users.reduce((acc,curr) =>{if(curr.age < 30){acc.push(curr.firstname);} return acc},[]) console.log(output);

[@AsifDawood]

Great Video. The concepts of map,filter and reduce were clearly explained with real world requirements

[@chinmayhegde2506]

Your statement "Filter function is actually used to filter" coincided with the Ad that starts with "So you wanna be a Software Engineer at Google".

[@santhosh_ravi]

lol

[@nitingupta1650]

when will you release a video on the 'This' keyword in JS. We really need to understand how the binding of "this" is different in the arrow function !! BTW, great work till now!

[@akshaybhinge19]

🙌 I am also waiting for that.

[@Micdevs]

the explanation is crystal clear fr!.... thanks big man!

[@prashantlalwani527]

finally completed yhe whole playlist. Thanks Akshay for the great content.

[@jaynilgaglani9480]

Here's my solution using reduce const output = users.reduce((result, {age, firstName}) => { if(age < 30){ result.push(firstName); } return result; }, []);

[@waqastahir1251]

Thank you so much for this Javascript series

[@maniratnamonu2125]

Very nicely explained and the best part of this lecture is that you explained with the help of examples of different level

[@ashishchopra353]

Thank you for such a nice content. Really clarified all my doubts with simple and advance examples. Home work completed sir. :) const output = users.reduce((acc, curr) => { if (curr.age < 30) { acc.push(curr.firstName); } return acc; }, []); console.log(output); @Akshay Saini, Can we expect videos on `Iterators` and `generators` in JS in near future ?

[@saurabhgandhi615]

const output = users.reduce((acc, curr) => { if (curr.age && curr.age < 30) { acc.push(curr.firstName); } return acc; }, []); console.log(output);

[@shubhanshusahuu]

Nice

[@mohdumar5698]

const names = arr.reduce(function(acc, curr) { if(curr.age < 30) acc.push(curr.firstName); return acc },[]) console.log(names)

[@mohammedshanshajahan4357]

@@saurabhgandhi615 what is thelogic of curr.age&&

[@inderpreetsingh4176]

I am addicted to the way you teach and changed the way, I used to learn. Now, I always hunt the blogs which go in-depth. Here is my H/W // find people whose age is less than 30 using reduce const users = [ {firstName: "Inderpreet", lastname:"singh", age:31}, {firstName: "Rahul", lastname:"Kumar", age:28}, {firstName: "Akshay", lastname:"Saini", age:20} ]; const output = users.reduce(function(acc, curr) { if(curr.age

[@sachinkate9963]

i am java developer now leaning JavaScript from your channel